Question

The ratio of the area of a circle to the circumference of a​ circle, A/C, is 30/1
. Find the radius and circumference of a circle with twice the radius of the original circle.

Answer 1

Step-by-step explanation:

A:C = 30:1

πr^2/2πr = 30/1

r/2 = 30

r = 60 units

2πr = 2*22/7*60

=2640/7 units